I_HATE_WIRES

I'm in over my head. Bought my 520D E61 2010 about 3 months ago and immediately had problems with the trunk wiring. Replaced them myself without a loom and ended up having more issues than before. Today I used a aftermarket loom set, but it didn't fix anything but the radio. Now my backup lights, brake light on the right, window switch and trunk switch don't work. Replaced all of the connections but it didn't help. Tried to find info on fuses but no help there either.

Any help is much appreciated!!!